Missing out on the Champions League next season could cost Manchester City up to £100million.

The Blues are praying West Ham can do them a favour against rivals United at Upton Park, because a Reds win would see City drop out of the top four for the first time this season – with one game to play.

Football finance expert Rob Wilson has based his estimate on the £50million the Blues have made from this season's competition.

But he reckons that missing out on the European elite competition also means they will have to fork out more on transfer fees ad wages in order to attract the players they need.

City are hoping that the attraction of playing under Pep Guardiola will off-set some of that cost, but Wilson says: “I would say it is two-pronged.

The end of Manchester City's Champions League campaign this season.

“You lose out on the Champions League revenue - about a £50million reduction, based on how City have fared this season in the Champions League.

“They would get a little bit from the Europa League, but nothing like the amounts they would get from the Champions League.

“The other impact we see with bigger teams that don't qualify for the Champions League is the additional transfer fees and player wage packages they have to pay out.